Smartphone demand might be on a steep downward trajectory worldwide, but at least stateside, customer satisfaction continues to improve, from an overall industry grade of 78 out of 100 last year to 79 based on feedback supplied between March 5 and 31 by 12,710 tech consumers chosen at random.Questioned about their “recent experiences with the largest telecommunications service providers and phone manufacturers”, these singled T-Mobile and Apple out as their respective segment’s leaders in terms of the way they cater to the buyer’s needs and requirements.That shouldn’t come as a ...